(19)
(11) EP 3 640 690 A3

(12) EUROPEAN PATENT APPLICATION

(88) Date of publication A3:
21.10.2020 Bulletin 2020/43

(43) Date of publication A2:
22.04.2020 Bulletin 2020/17

(21) Application number: 19199210.6

(22) Date of filing: 24.09.2019
(51) International Patent Classification (IPC): 
G02B 5/28(2006.01)
G01J 3/26(2006.01)
 G02B 26/00(2006.01)
(84) Designated Contracting States:
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
Designated Extension States:
BA ME
Designated Validation States:
KH MA MD TN

(30) Priority: 27.09.2018 JP 2018181434
20.12.2018 JP 2018238108

(71) Applicant: Seiko Epson Corporation
Tokyo 160-8801 (JP)

(72) Inventors:
  • MATSUNO, Yasushi
    Nagano, 392-8502 (JP)
  • NISHIMURA, Teruyuki
    Nagano, 392-8502 (JP)

(74) Representative: Hoffmann Eitle 
Patent- und Rechtsanwälte PartmbB Arabellastraße 30
81925 München
81925 München (DE)

   


(54) OPTICAL DEVICE AND ELECTRONIC APPARATUS


(57) Provided is an optical device including a first wavelength variable interference filter in which a first reflective film and a second reflective film face each other with a first gap in between; a second wavelength variable interference filter in which a third reflective film and a fourth reflective film face each other with a second gap in between; and a first substrate having a transmissive property, which has a first surface and a second surface which is opposite in direction to the first surface, in which the second reflective film is provided on the first surface of the first substrate, and in which the third reflective film is provided on the second surface of the first substrate.







Search report















Search report